Pyrilutamide and RU58841 are androgen receptor antagonists that block receptors without significantly reducing testosterone or DHT levels. Any indirect effect on androgen levels is likely negligible.
Pyrilutamide is believed to be more effective than RU58841 and 1 mg finasteride in treating hair loss, with no systemic hormonal effects and the potential to block more than 31% of scalp DHT. It may also antagonize scalp testosterone due to its action as an androgen receptor antagonist.
People are discussing the anticipated release of PP405 phase 2a results, expected by the end of March, with some skepticism about its effectiveness. There is cautious optimism due to past experiences with similar treatments like Breezula, despite concerns about the lack of presentation at the AAD 2026 conference.
The conversation discusses the less impressive results of Pyrilutamide (kx-836) in phase 3 compared to phase 2, with a suggestion that a longer study might show more significant results. One user reports personal success with Pyrilutamide, experiencing no further hair loss and gradual regrowth.
RU58841 may pose cancer risks due to its antiandrogen properties and lack of long-term safety data. Using it is considered a high-risk experiment with unknown potential for harm.
The conversation discusses the removal of Breezula phase II 12-month results by Cassiopea and the search for the original data. Concerns were raised about potential negative long-term effects on hair growth, such as androgen receptor upregulation.
The group buy for CB-03-01, a topical anti-androgen for hair loss, was postponed and refunded due to issues with the product's form and solubility. The product, also known as Breezula, is an alternative to finasteride with fewer side effects, but its official release is delayed until 2021.
AH-001 is a new topical treatment designed to degrade androgen receptors, targeting the root cause of androgenetic alopecia without the side effects of oral treatments like finasteride. It has shown a strong safety profile and good local tolerability in early trials.
Fluridil may decrease the number of androgen receptors in hair follicles by up to 95%. This suggests a different action mechanism from other non-steroidal antiandrogens like RU58841, indicating they might be used together.
User experienced hair regrowth after eliminating scalp itch with RU58841. Others discussed itch and hair loss connection, and effectiveness of combining RU58841 with 5AR inhibitors.
Hope Medicine received a $28M investment for HMI-115, a monoclonal antibody in phase II trials for treating androgenetic alopecia. Some users are skeptical about its effectiveness, while others find the investment and trial results encouraging.
Treatments for hair loss, including the effectiveness and safety of Pyrilutamide compared to RU58841; experiences using both medications with varying results; and recommendations to try Pyrilutamide instead of RU58841.
Actifolic's RU58841 and Pyri products are perceived as ineffective, with users reporting no side effects or improvements, suggesting possible quality issues. Users recommend alternative sources and emphasize the importance of timing when using RU58841 with Minoxidil.
A user created a tracker for hair loss treatments in clinical development, including compounds like Dermaliq, RU58841, and Pyrilutamide. The tracker updates with new information and allows filtering by conditions like androgenetic alopecia (AGA) and alopecia areata (AA).
PP405's phase 2a trial results were presented, focusing on safety and pharmacokinetics, with a future meeting planned to share the full dataset. The trial includes a randomized controlled portion and an open-label extension, with no indication of phase 2B completion.
Pirfenidone is suggested to treat fibrosis and baldness by blocking inflammation markers and reducing collagen. It is also available as a gel for scar removal.
RU58841 is discussed as a treatment that stops scalp itching when used with finasteride or dutasteride. The user is considering trying RU58841 due to persistent itching despite using the "big 3" treatments.
RU58841 caused chest tightness, throat irritation, and headaches, leading the user to stop its use. The user plans to restart with a lower dose if symptoms fully disappear but remains cautious due to anxiety and side effects.
RU58841 was the only treatment that slowed hair loss and reduced irritation for a DUPA sufferer after trying finasteride, minoxidil, and dutasteride with no success. The user continues using 6mg oral minoxidil, 0.5mg dutasteride, and an 8% RU58841 solution.
RU58841 and pyrilutamide are being discussed as potential hair loss treatments, with some users reporting side effects. There is interest in these treatments as alternatives to 5ar inhibitors and oral minoxidil due to concerns about safety and side effects.
Pyrilutamide is officially available for purchase, and users suggest Fluridil as an alternative topical anti-androgen. Some users report positive results with pyrilutamide from Koshine.
AMP-303 and AMP-601 are new hair loss treatments targeting dermal papilla cells, with AMP-303 showing early efficacy in transitioning vellus hairs to terminal hairs after one injection. Further clinical trials are planned, and these treatments are seen as promising due to their biologic approach and less frequent application compared to daily treatments.
The phase 3 trial results for Pyrilutamide showed no significant difference from the control treatment in increasing hair count, leading to the company halting its development. Users discussed their disappointment and skepticism about hair loss treatments, with some mentioning other treatments like Minoxidil, Finasteride, and RU58841.
A user from China is participating in a clinical trial for Pyrilutamid, a potential hair loss treatment originally developed for prostate cancer. They've experienced no side effects except initial scalp itchiness, and will share results after the year-long trial.
Kintor's Pyrilutamide (KX-826) showed hair growth in Chinese Phase III trials but did not significantly outperform placebo. The treatment was safe with no major adverse reactions reported.
A user diagnosed with Alopecia Areata started using Litfulo (ritlecitinib), kenalog shots, and mometasone furoate 0.1%. They shaved their head and are seeking others' experiences with Litfulo.
The conversation discusses concerns that Anagenic's version of GT20029 might not be as effective or safe as Kintor's, with comparisons to issues faced by pyrilutamide. The chemical structure of the drug has been published.
A 31-year-old male shared his 3-year progress using finasteride 1 mg daily, with additional treatments including nutrafol, multivitamins, vitamin D, marine collagen, PRP scalp injections, micro-needling, and Nizoral. He experienced temporary libido issues but currently has no side effects.